I agree. Hefeweizen and Pale Ale are good choices, as long as the Pale Ale is hopped more lightly than some of us tend toward.
Is this for Westerner newbies, or Koreans? For Koreans new to homebrewing, being able to compare to a known commercial style helps, and I've found that Belgian Wit is another good choice for that reason -- as they all know Hoegaarden. (Stout is another good choice, if seasonally suitable.)
I also found that Koreans seem to take to English style beers for some reason: the Newcastle, the London Pride: for some reason, Milds and Brown Ales and English style Pale Ales seem to go over very well with them. So I'd go with an English style pale ale, or perhaps a Northern Brown Ale.
And it's not hard to make a decent English Brown. And you want to make a mild, I STRONGLY recommend the Windsor (dry) yeast. I wasn't crazy about the yeast character at first but I let it age a bit and it was good... a hit at a party full of Koreans, and also finished slightly sweet, which is hard to make happen with a really low-gravity mild. :)